Lubricant retainer for axles and the like



Oct. 17, 1933. 'r. c. 'DELAVAL-CROW 3 LUBRICANT RETAINER FOR AXLES AND THE LIKE Filed Sept. 10, 1928 INVENTOQE moms 0. 05m vAL-ceaw,

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HIS A TTOA/VEY Patented Oct. 17, 1933 V I LUBRICANT RETAINER FOR. AXLES AND THE LIKE Thomas C. Delaval-Crow, Bristol, Conn., assignor to The New Departure Manufacturing Compagiy, Bristol Conn., a corporation of Connecticu Application September 10, 1928 Serial No. 304,956

Claims. (Cl. 308-134) This invention relates to lubricant retainers for flat and so expanded into the groove. The nut axles and the like and comprises all the features and packing washer provide a unit-handling of novelty herein disclosed. One difliculty which. clamp and seal for holding the bearing on the occurs more especially with three-quarter floataxle and sealing the space between the axle and ing axles is leakage of oil from the axle casing the drive shaft without any dependence on the 60 to the wheel bearing and brake drum. The oil hub for holding either. surges outwardly towards the wheels on curves When the nut is set up tight, the metal washer and works around the dead axle into the hub 32 forces the felt washer against the end of m and bearing, diluting the bearing grease and the dead axle or casing 18 and against the peforces it past the bearing seal to the brake. An shaft usually has a slight taper so that the washobject of the invention, accordingly, is to provide er presses more strongly against it at the point a lubricant retainer for axles and the like which 33 so forming a conical capillary space which will eliminate the above mentioned difliculty. helps to prevent oil from working outwardly 15 Another object is to provide a combined bearing along the axle to the bearing and the brake 79 holding device and lubricant retainer. drum 34. When the shaft is straight, the re- To these and other ends and to improve taining washer 32 is preferably provided with a generally and in detail upon devices of this charside rib or annular protuberance spaced a acter, the invention further consists in the valittle from the peripheral edge of the washer as rious matters hereinafter disclosed and claimed. indicated in Fig. 2, thereby contracting the ad- Inits broader aspects, the invention is not necesjacent side of the packing washer and causing sarily limited to the specific construction selected the hole in the packing washer to assume a slightfor illustrative purposes in the accompanying ly conical form for capillary action. The hub drawing in which member 6 carries the usual flanged shield 36 Fig. l is a sectional view of a three quarter which projects through an opening in the brake floating axle and Fig. 2 is a sectional view of a cover plate 38. To further insure against leakmodified detail.- age of grease and oil to the brake, a washer 40 The numeral 2 indicates a live axle or drive of felt or the like is interposed between the exshaft keyed to a hub section 4 attached to tended inner race ring 12 and the hub end of the flanged hub member 6 which carries th out r shield 36. The felt washer is compressed between race ring 8 of a ball bearing 10. The inner race a flanged Washer 42 and a Washer 44 a g a ring 12 of the bearing is longer than the outer Side rib 6. h Side rib 46 Causes the Opening race ring and abuts against a sleeve 14. wh r in the felt washer 40 to assume a slightly conical it is held by a clamping nut 16 threaded on a rm e y m n a capillary space at 48 dead axle or casing 18 and locked by a washer 20 which tends to draw oil towards the bearing and 0 The nut is made to project beyond the end of so prevents leakage. The extended inner race the dead axle or casing and is provided with a ring 12 Protects the felt Washer 40 a s da recess 22 forming a seat of larger diameter than e during as y of the Parts On e mile. the threaded portion and providing an annular I Claim! shoulder 24 arranged in approximate alignment 1. In a device of the character described. a with the end of the axle but not beyond it when ead axle, a Wheel h a ri we n th the nut is set up. Outside the recess 22 is a axle and the wheel hub, a drive shaft extending groove 26, and outside the groove is an annular throu t a nutrfel holding e be r lip 28 having a diameter less than the groove and on the axle, the nut hav a Portion projectin 45 greater thanthe recess. A packing Washer 30 of beyond the end of the axle and provided with a felt or the like fits around the shaft and occupies recess having an annular shoulder, a compressithe recess, fitting the latter and being held ble packing washer set in the recess against the against the shoulder 24 by a metal retaining shoulder and fitting around the drive shaft, the washer 32 which is forced into the groove. The nut having a groove outside the recess, and a packing washer projects radially beyond the retaining washer fixed in the groove and pressing threads from its permanent seat and the retainthe packing washer directly against'the end of ing washer extends alongside of it to furnish the axle; substantially as described.

lateral support. The metal washer is convenient- 2. In a device of the character described, a

I ly inserted by first dishing it or making it conical casing, a member rotatable with respect to the 5b to pass the lip 28 after which it is pressed out casing, a bearing between the casing and the robuilding up a pressure by centrifugal force which riphery of the live axle or drive shaft 2. The 65 tatable member, a drive shaft extending through the casing and connected to the rotatable member, and a unit-handling bearing clamping deyice and lubricant seal, said device comprising a nut threaded on the casing against a part of the bearing, a compressible packing washer in the nut and fitting around the shaft, and means for securing the packing washer permanently in the nut and holding said washer pressed directly against the end of the casing; substantially as described.

3. In adevice of the character described, a dead axle, a wheel hub, a'bearing between the axle and the wheel hub, a drive shaft extending through the axle, a bearing clamping member mounted on the axle for holding the bearing thereon, the clamping member having a portion projecting beyond the end of the axle and a shoulder, a compressible packing washer at the end of the axle and extending from the projecting portion of the clamping member to the drive shaft, and means secured to the clamping member and engaging one side of the packing washer to hold the other side pressed directly against the end of the axle and against the shoulder; substantially as described.

4. In a device of the character described, a dead axle, a wheel hub, a bearing between the axle and the wheel hub, a drive shaft extending through the axle, a bearing clamping member mounted on the axle for holding the bearing thereon, the clamping member having a portion projecting beyond the end of the axle, a compressible packing washerat the end of the axle and extending from the projecting portion of the clamping member to the drive shaft, a holding washer secured to the clamping member and engaging one side of the packing washer to hold the other side pressed directly against the end of the axle, said holding washer having a rib spaced from its edge and distorting the'packing washer to produce a capillary recess at the shaft; sub? stantially as described.

5. ma device of the character described, a casing, a member rotatable with respect to the casing, a bearing between the casing and the rotatable member, a drive shaft extending through the casing and connectedto the rotatable member, in combination with a unit-handling bearing clamping device and lubricant sealcomprising a nut threaded on the casing against the bearing, the nut having a portion projecting beyond the casing and provided with a recess terminating in a shoulder, a compressible packing washer fitting in the recess and projecting radially into engagement with the drive shaft, and means secured to the nut for holding the packing washer against the shoulder, said means extending alongside of the radially projecting portion of the packing washer to hold the latter against the end of the casing; substantially as described.

6; In a unit-handling bearing clamping device and lubricant seal, a member adapted to engage a bearing part and having a threaded portion and a portion with a packing recess of different .diameter, a shoulder between said portions of different diameter, a compressible packing washer fitting against the peripheral wall of the recess and projecting radially from the recess and the shoulder beyond the threaded portion, and means on the member for holding a portion of the packing washer against the shoulder and laterally supporting its radially projecting portion; substantially as described.

'7. In a unit-handling bearing clamping device and lubricant seal, a member adapted to engage a bearing part and having a threaded portion and a portion with a packing recess of different diameter, a shoulder between said portions of different diameter, a compressible packing washer fitting against the peripheral wall of the recess and projecting radially therefrom beyond the threaded portion, and a retaining washer secured to the recessed portion of the member for holding a portion of the packing washer against the shoulder, said retaining washer extending alongside the packing washer and adapted to hold the radially projecting portion of the packing washer laterally against the part to be sealed; substantially as described. I

8. In a unit-handling bearing clamping device and lubricant seal, a member adapted to engage a bearing part and having a threaded portion and a portion with a packing recess of different diameter, a shoulder between said portions of different diameter, a compressible packing washer fitting against the peripheralwall of the recess and projecting radially therefrom beyond the threaded portion, a retaining washer secured to the recessed portion of the member for holding a portion of the packing washer against the shoulder, said retaining washer extending radially alongside the packing washer and having an annular protuberance spaced from its peripheral edge for contracting the adjacent side of the packing washer to produce a taper on the adjacent peripheral wall of the packing washer; substantially as described.

9. In a unit-handling clamping device and lubricant seal, a member having an internally threaded portion terminating in a shoulder, the member having an internal recess beyond the shoulder and of larger diameter than the threaded portion, a compressible packing washer fitting against the peripheral wall of the recess and against the shoulder and having an opening of smaller diameter than the threaded portion of the member whereby the packing washer has portions which are both larger and smaller than the threaded portion, and means secured to the member for holding that portion of the packing -washer which is larger than the threaded por- 'ing portion 01'- the member and extending alongside of the packing washer to furnish lateral support thereto; substantially as described.

THOMAS C. DELAVAL-CROW. 

